Q5. Contour interval is:
(a) Inversely proportional to the scale of the map
(b) Directly proportional to the flatness of ground
(c) Large for accurate works
(d) Larger if the time available is more
L1Difficulty 2
QTags Irrigation Engineering
QCereator Ashwani Jain

Q6. The property of a material by virtue of which it can be beaten or rolled into plates is called
(a) malleability
(b) elasticity
(c) plasticity
(d) ductility
L1Difficulty 2
QTags Strength of Material
QCereator Ashwani Jain

S5. Ans.(a)
Sol. contour interval is the vertical distance two consecutive contours. contour interval depends on scale of the map, nature of ground, purpose of map etc. if scale is small then contour interval large.

S6. Ans.(a)
Sol. Malleability is the property of material allows it to expand in all direction without rupture.

S7. Ans.(d)
Sol. In fluid dynamics, the drag coefficient has no dimensions. It is a dimensionless quantity. Drag coefficient is used to quantify the resistance of an object in a fluid environment. It is mainly used in air and water.
S8. Ans(a)
Sol. When tension member is subjected to heavy load, the number of bolts or length of welds required for making connection becomes large, it results in uneconomical size of gusset plates. In such situations, additional short angles called lug angles may be used to reduce joint length and shear lag.
S9. Ans(c)
Sol. the summit curve is provided when an up gradient of a highway meets a downgrade.